I unpack the provided modfile#6 and replaced the modbios with the original bios from Acer and the update works ... restart , Updatescreen with no peeps, an cute percent ad, at 100% a reboot and the system also have a cmos-clear witch mean the new/old original Bios is updatet correctly
Use aida64 to see what version it is and check the version (if updated) to the manufacturer's website of your mobo